United States. National Park Service. Water Resources Division

found: Kunkle, S.H. Field survey of Giardia in streams ... 1985:t.p. (Water Resources Division, National Park Service, Fort Collins, CO)

found: Phone call to NPS Water Resources Division, 6/23/86(Water Resources Division is part of WASO, NPS, but located in Fort Collins, Colo.)

found: Phone call to NPS, 6/30/86(Water Resources Division, National Park Service created 6/23/81, succeeding Air and Water Resources Division; at the same time was also created a companion division, Air Quality Division; on 2/26/83 both divisions were remerged as Air and Water Quality Division; on 1/23/85 they were resplit to their original names and relocated to Colorado (Water Resources Division to Fort Collins, and Air Quality Division to Denver)

notfound: Natural Resource Program Center (U.S.). Water Resources Division. Annual report [ER] 2000: PDF file, t.p. (Water Resources Division, Natural Resource Program Center; United States Department of the Interior, National Park Service)